๐Ÿ” CVE Alert

CVE-2026-78414

HIGH 8.0

Cross-site scripting in Nx Witness VMS Web Administration allows session token exfiltration via a rogue peer site name

CVSS Score
8.0
EPSS Score
0.0%
EPSS Percentile
0th

Cross-site scripting in the Web Administration interface of Network Optix Nx Witness VMS before version 6.1.3 on Linux, Windows and MacOS allows an adjacent-network attacker to execute arbitrary JavaScript in the browser of an authenticated administrator and steal the administrator's session token, resulting in Administrator Account Takeover. An attacker who controls an Nx server on the same network segment can set that server's site name to a script payload, which executes when an administrator opens the "Merge with Another Site" dialog and the site selection list is displayed.Solution: Update to Nx Witness VMS version 6.1.3 or later.

CWE CWE-79
Vendor network optix
Product nx witness vms
Published Aug 24, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Network Optix / Nx Witness VMS
0 < 6.1.3

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
support.networkoptix.com: https://support.networkoptix.com/hc/en-us/articles/42950508518679-Security-Advisory-Cross-Site-Scripting-XSS-in-Merge-with-Another-Site-Dropdown

Credits

Matan Sandori and 2Bsecure